JPWO2004101419A1 - Elevator equipment - Google Patents

Elevator equipment Download PDF

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Publication number
JPWO2004101419A1
JPWO2004101419A1 JP2004567187A JP2004567187A JPWO2004101419A1 JP WO2004101419 A1 JPWO2004101419 A1 JP WO2004101419A1 JP 2004567187 A JP2004567187 A JP 2004567187A JP 2004567187 A JP2004567187 A JP 2004567187A JP WO2004101419 A1 JPWO2004101419 A1 JP WO2004101419A1
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JP
Japan
Prior art keywords
car
counterweight
main rope
hoistway
elevator
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2004567187A
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Japanese (ja)
Inventor
濱口 修喜
修喜 濱口
Original Assignee
三菱電機株式会社
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2003/006011 priority Critical patent/WO2004101419A1/en
Publication of JPWO2004101419A1 publication Critical patent/JPWO2004101419A1/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065Roping
    • B66B11/008Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Abstract

In the elevator apparatus, the driving apparatus has a thin motor and is disposed between the car and the wall surface of the hoistway in the vertical projection plane. First and second main rope connection portions are provided on both sides of the car. Above the first and second main rope connection portions, first and second car-side return wheels are arranged. Above the counterweight, a counterweight-side return wheel is arranged. The main rope group is wound around the first car-side return wheel and is connected to the first main rope connection portion, and the second main car-side return wheel is wound around the second car-side return wheel. And a second main rope connected to the cable connection portion. The car and the counterweight are suspended by a main rope group in a 1: 1 roping method.

Description

  The present invention relates to an elevator apparatus in which a drive device is disposed in a hoistway, that is, a so-called machine room-less elevator apparatus.
In a conventional machine room-less elevator, a drive device and a control panel are disposed, for example, between a hoistway wall and a car. Further, in a machine room-less elevator disclosed in, for example, Japanese Patent Application Laid-Open No. 10-139321, a thin driving device is disposed at an upper portion in a hoistway.
However, in the conventional machine room-less elevator as described above, a car suspension (moving pulley) is attached to the lower part of the car in order to suppress the overhead dimension, and the main rope is arranged by the 2: 1 roping method. The configuration becomes complicated, the number of parts increases, and the cost increases. In addition, the drive sheave rotates at a high speed, which may cause vibration and noise.
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an elevator apparatus that can be simplified in configuration and reduced in cost.
An elevator apparatus according to the present invention is arranged in a hoistway, and includes a drive device body, a drive device having a drive sheave rotated by the drive device body, a main rope group wound around the drive sheave, and a main rope group The car is suspended in the hoistway and is moved up and down in the hoistway by the driving device, and the weight of the driving device has a thin motor whose axial dimension is smaller than the diameter. The rotation axis of the drive sheave is arranged so as to extend in the horizontal direction, and is arranged between the cage and the wall of the hoistway in the vertical projection plane. 1 and 2 main rope connection portions are provided, and first and second car side return wheels are arranged above the first and second main rope connection portions in the upper part of the hoistway. In the upper part of the hoistway, above the counterweight, the counterweight side A main wheel group is wound around the first car side return wheel and is connected to the first main rope connecting portion and is also wound around the counterweight side return wheel. The first main rope connected to the second car side return wheel and the second main rope connecting part connected to the second main rope connecting part and the counterweight side return wheel. The car and the counterweight are suspended in a 1: 1 roping manner by the main rope group.
1 is a perspective view showing an elevator apparatus according to Embodiment 1 of the present invention;
FIG. 2 is a plan view showing the elevator apparatus of FIG.
FIG. 3 is a side view showing the main part of the elevator apparatus of FIG.
FIG. 4 is a perspective view showing an elevator apparatus according to Embodiment 2 of the present invention.
FIG. 5 is a plan view showing the elevator apparatus of FIG.
FIG. 6 is a plan view showing an elevator apparatus according to Embodiment 3 of the present invention.
FIG. 7 is a perspective view showing an elevator apparatus according to Embodiment 4 of the present invention.
Preferred embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a perspective view showing an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a plan view showing the elevator apparatus of FIG. 1, and FIG. 3 is a side view showing a main part of the elevator apparatus of FIG.
In the figure, a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed in a hoistway 1. The car 4 is guided by the car guide rail 2 and moved up and down in the hoistway 1.
First and second main rope connection portions 4 a and 4 b are provided below the upper end portion of the car 4, here in the lower part (lower frame) of the car 4. The first and second main rope connection portions 4 a and 4 b are disposed on both sides of the car 4. Further, the first and second main rope connection portions 4 a and 4 b are disposed symmetrically with respect to the center of gravity of the car 4.
The counterweight 5 is raised and lowered in the hoistway 1 by being guided by the counterweight guide rail 3. The lifting area of the counterweight 5 is located on the side of the lifting area of the car 4.
A support beam 8 is supported at one upper end of one of the car guide rails 2 and one of the counterweight guide rails 3 via a plurality of support bases 6 and a plurality of buffer members 7 made of rubber or the like.
A driving device (winding machine) 9 for raising and lowering the car 4 and the counterweight 5 is disposed at the top of the hoistway 1. Specifically, the drive device 9 is fixed to the lower part of the support beam 8. The drive device 9 includes a drive device body 10 and a drive sheave 11 that is rotated by the drive device body 10. The drive device main body 10 has a thin motor whose axial dimension is smaller than the diameter. The drive sheave 11 is directly rotated by a thin motor. That is, the drive device 9 is a gearless type.
The drive device 9 is arranged so that the rotation shaft of the thin motor and the rotation shaft of the drive sheave 11 extend in the horizontal direction. The driving device 9 is disposed between the car 4 and the wall surface (side wall) 1a of the hoistway 1 in the vertical projection plane. Furthermore, the drive device 9 is disposed at a position lower than the upper end portion of the car 4 when the car 4 moves to the uppermost position.
First and second car-side return wheels 12 and 13 that are rotatable, and first and second counterweight-side return wheels 14 and 15 that are rotatable are supported on the support beam 8. The first and second car-side return wheels 12 and 13 are arranged such that their rotation axes extend in parallel and horizontally. The first and second car-side return wheels 12 and 13 are arranged directly above the first and second main rope connection portions 4a and 4b.
The 1st and 2nd counterweight side return wheels 14 and 15 are arrange | positioned so that those rotating shafts may mutually extend in parallel and horizontally. Further, the second counterweight side return wheel 15 is disposed directly above the counterweight 5. Furthermore, the drive device 9 and the return wheels 12 to 15 are mounted on the common support beam 8 and unitized.
A main rope group 16 for suspending the car 4 and the counterweight 5 in the hoistway 1 is wound around the drive sheave 11. The main rope group 16 has a plurality of first main ropes 17 and a plurality of second main ropes 18. Here, the number of first main ropes 17 and the number of second main ropes 18 are the same.
The first main rope 17 has a first end portion 17 a connected to the first main rope connection portion 4 a and a second end portion 17 b connected to the upper portion of the counterweight 5. . The second main rope 18 has a third end portion 18 a connected to the second main rope connection portion 4 b and a fourth end portion 18 b connected to the upper portion of the counterweight 5. .
The first main rope 17 is wound from the first end portion 17a in the order of the first car side return wheel 12, the drive sheave 11, and the counterweight side return wheels 14, 15 in order. 17b. The second main rope 18 is wound from the third end portion 18a in the order of the second car side return wheel 13, the drive sheave 11, and the counterweight side return wheels 14 and 15, and the fourth end portion. 18b has been reached.
That is, the first main rope 17 and the second main rope 18 connected to the counterweight 5 are branched in two directions by the first car side return wheel 12 and connected to both sides of the car 4. . The support beam 8 is provided with an opening 8 a for allowing the first main rope 17 to pass therethrough. The opening 8a is disposed directly above the first main rope connection 4a.
Moreover, as the first and second main ropes 16 and 17, a composite material rope having a rope body and an outer layer covering body coated on the outer periphery of the rope body is used. The rope body is a steel core rope having a core rope formed by twisting high-strength steel strands. The outer layer covering is made of a high friction resin material.
Since the composite rope has high flexibility, the sheave diameter / rope diameter can be set to 20 to 25, and the diameters of the drive sheave 11, the car side return wheels 13, 14 and the counterweight side return wheels 15, 16 can be set. Can be small.
In such an elevator apparatus, since the car 4 is directly suspended by 1: 1 roping, the configuration is simplified and the rotational speed of the drive sheave 11 can be kept low. For this reason, even if it arrange | positions the drive device 9 in the hoistway 1, a quiet elevator apparatus with a low vibration and a low noise can be provided.
Further, the main rope group 16 is distributed to the first and second main ropes 17 and 18, and is suspended by the first and second main rope connection portions 4a and 4b arranged symmetrically with respect to the center of gravity of the car 4. As a result, the car 4 can be stably suspended from its center of gravity. Thereby, it is possible to prevent the reaction force due to the unbalanced load from acting on the car guide rail 2, and to improve riding comfort.
Furthermore, since the first and second main rope connection portions 4a and 4b are arranged at the lower part of the car 4, it is not necessary to provide the connection part of the main rope group 16 at the upper part of the car 4. Therefore, the dimension of the upper part of the car 4 can be reduced, and the increase in the vertical dimension of the hoistway 1 can be suppressed while the drive device 9 is disposed in the upper part of the hoistway 1.
Furthermore, the drive device main body 10 has a thin motor, the rotation shaft of the drive sheave 11 extends in the horizontal direction, and the drive device 9 includes the car 4 and the wall surface 1a of the hoistway 1 in the vertical projection plane. Therefore, the space in the hoistway 1 can be effectively used to suppress an increase in the vertical dimension of the hoistway 1.
Moreover, since the drive device 9 and the return wheels 12 to 15 are mounted on the common support beam 8 and unitized, the installation can be facilitated.
Further, since the support beam 8 is supported on the guide rails 2 and 3 via the buffer member 7, the load on the building can be reduced, and vibration and noise from the drive device 9 and the return wheels 12 to 15 can be reduced. Can be prevented from being transmitted to the inside of the car 4 or the landing via the guide rails 2 and 3.
Furthermore, since composite material ropes are used as the first and second main products 16 and 17, the increase in the load torque of the drive device body 10 due to the 1: 1 roping is absorbed by reducing the diameter of the drive sheave 11. be able to.
Embodiment 2. FIG.
4 is a perspective view showing an elevator apparatus according to Embodiment 2 of the present invention, and FIG. 5 is a plan view showing the elevator apparatus of FIG. In the second embodiment, the lifting area of the counterweight 5 is located behind the lifting area of the car 4. Support beams 21 are supported on the upper end portions of the car guide rail 2 and the counterweight guide rail 3 via the support base 6 and the buffer member 7. In FIG. 5, illustration of the support base 6, the buffer member 7, and the support beam 21 is omitted.
The driving device 9 is fixed to the lower part of the support beam 21. On the support beam 21, first and second car-side return wheels 22 and 23, a direction changing pulley 24 and a counterweight-side return wheel 25 are mounted.
The first and second car side return wheels 22 and 23 and the direction changing pulley 24 are arranged such that their rotation shafts extend horizontally. The first and second car-side return wheels 22 and 23 are disposed directly above the first and second main rope connection portions 4a and 4b. The first car-side return wheel 22 is disposed so as to be positioned between the car 4 and the wall surface (side wall) 1a of the hoistway 1 when the car 4 moves to the uppermost position.
The counterweight-side return wheel 25 is arranged so that its rotating shaft extends horizontally. Further, the counterweight return wheel 25 is arranged directly above the counterweight 5. Furthermore, the drive device 9 and the return wheels 22 to 25 are mounted on a common support beam 21 and unitized.
A main rope group 26 for suspending the car 4 and the counterweight 5 in the hoistway 1 is wound around the drive sheave 11. The main rope group 26 includes a plurality of first main ropes 27 and a plurality of second main ropes 28. Here, the number of first main ropes 27 and the number of second main ropes 28 are the same.
The first main rope 27 has a first end portion 27 a connected to the first main rope connection portion 4 a and a second end portion 27 b connected to the upper portion of the counterweight 5. . The second main rope 28 has a third end portion 28 a connected to the second main rope connection portion 4 b and a fourth end portion 28 b connected to the upper portion of the counterweight 5. .
The first main rope 27 is wound from the first end portion 27a in the order of the first car-side return wheel 22, the drive sheave 11, and the counterweight-side return wheel 25 in this order, and the second end portion 27b. Has reached. The second main rope 28 is wound from the third end portion 28a in the order of the second car side return wheel 23, the direction change pulley 24, the drive sheave 11, and the counterweight side return wheel 25 in order. To the end 28b. Other configurations are the same as those in the first embodiment.
Even in such an elevator apparatus, the car 4 is directly suspended by 1: 1 roping, so that the configuration is simplified and the rotational speed of the drive sheave 11 can be kept low. For this reason, even if it arrange | positions the drive device 9 in the hoistway 1, a quiet elevator apparatus with a low vibration and a low noise can be provided.
Further, the main rope group 26 is distributed to the first and second main ropes 27 and 28, and is suspended by the first and second main rope connection portions 4a and 4b arranged symmetrically with respect to the center of gravity of the car 4. As a result, the car 4 can be stably suspended from its center of gravity. Thereby, it is possible to prevent the reaction force due to the unbalanced load from acting on the car guide rail 2, and to improve riding comfort.
Embodiment 3 FIG.
Next, FIG. 6 is a plan view showing an elevator apparatus according to Embodiment 3 of the present invention. In the figure, the driving device 9 is arranged side by side with the counterweight 5 between the car 4 and the wall surface (back wall) 1b of the hoistway 1 in the vertical projection plane. The driving device 9 is disposed at a position lower than the upper end portion of the car 4 when the car 4 moves to the uppermost position.
The first and second car-side return wheels 22 and 23 are disposed directly above the first and second main rope connection portions 4a and 4b. The first car-side return wheel 22 is arranged such that a part of the first car-side return wheel 22 is located between the car 4 and the wall surface (side wall) 1 a of the hoistway 1 when the car 4 moves to the uppermost position. The counterweight return wheel 25 is disposed directly above the counterweight 5. Other configurations are the same as those in the second embodiment.
Thus, by arranging the driving device 9 in parallel with the counterweight 5 in the space behind the car 4, the space in the hoistway 1 can be used more effectively, and the plane space of the hoistway 1 can be reduced. can do.
Embodiment 4 FIG.
7 is a perspective view showing an elevator apparatus according to Embodiment 4 of the present invention. In the figure, the drive device 9 is disposed in the vicinity of the bottom (pit) or in the vicinity of the underground floor in the hoistway 1. Specifically, the driving device 9 is fixed to the lower portion of the lower support beam 31 fixed between one of the car guide rails 2 and one of the counterweight guide rails 3. A buffer member (not shown) is interposed between the lower support beam 31 and the guide rails 2 and 3. The driving device 9 is arranged between the car 4 and the wall surface of the hoistway 1 in the vertical projection plane. Other configurations are the same as those in the second embodiment.
Even in such an elevator apparatus, the car 4 is directly suspended by 1: 1 roping, so that the configuration is simplified and the rotational speed of the drive sheave 11 can be kept low. For this reason, even if it arrange | positions the drive device 9 in the hoistway 1, a quiet elevator apparatus with a low vibration and a low noise can be provided.
Further, the main rope group 26 is distributed to the first and second main ropes 27 and 28, and is suspended by the first and second main rope connection portions 4a and 4b arranged symmetrically with respect to the center of gravity of the car 4. As a result, the car 4 can be stably suspended from its center of gravity. Thereby, it is possible to prevent the reaction force due to the unbalanced load from acting on the car guide rail 2, and to improve riding comfort.

Claims (8)

  1. A drive unit disposed in the hoistway and having a drive unit body and a drive sheave rotated by the drive unit body;
    A main rope group wound around the drive sheave, and an elevator that is suspended in the hoistway by the main rope group, and that is lifted and lowered in the hoistway by the drive device and a counterweight A device,
    The drive device body has a thin motor whose axial dimension is smaller than the diameter,
    The drive device is arranged such that the rotation axis of the drive sheave extends along the horizontal direction, and is arranged between the car and the wall surface of the hoistway in a vertical projection plane.
    First and second main rope connection portions are provided on both sides of the cage,
    First and second car side return wheels are arranged above the first and second main rope connection portions in the upper part of the hoistway,
    In the upper part of the hoistway, above the counterweight, a counterweight return wheel is arranged,
    The main rope group is wound around the first car-side return wheel and connected to the first main rope connecting portion, and is also wound around the counterweight-side return wheel and connected to the counterweight. The first main rope and the second car side return wheel, and connected to the second main rope connecting portion and wound on the counterweight side return wheel and the counterweight. A second main rope connected to the
    The elevator apparatus in which the car and the counterweight are suspended by the main rope group in a 1: 1 roping method.
  2. 2. The elevator according to claim 1, wherein the first and second main ropes are composite ropes having a rope body and an outer layer covering body that is covered with an outer periphery of the rope body and is made of a high friction material. apparatus.
  3. The elevator apparatus according to claim 1, wherein the first and second main rope connection portions are provided below an upper end portion of the car.
  4. The elevator apparatus according to claim 1, wherein the first and second main rope connection portions are arranged symmetrically with respect to the center of gravity of the car on both sides of the car.
  5. The elevator apparatus according to claim 1, wherein a support beam on which the driving device, the first and second car-side return wheels, and the counterweight-side return wheel are mounted is fixed to an upper portion in the hoistway. .
  6. In the hoistway, a car guide rail that guides the raising and lowering of the car and a counterweight guide rail that guides the raising and lowering of the counterweight are installed, and the support beam includes the car guide rail and the car The elevator apparatus of Claim 5 currently supported by the upper end part of either of the counterweight guide rails.
  7. The elevator apparatus according to claim 6, wherein a buffer member is provided between any one of the car guide rail and the counterweight guide rail and the support beam.
  8. The elevator apparatus according to claim 1, wherein the drive device is disposed in the vicinity of a bottom portion in the hoistway.
JP2004567187A 2003-05-14 2003-05-14 Elevator equipment Pending JPWO2004101419A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/006011 WO2004101419A1 (en) 2003-05-14 2003-05-14 Elevator device

Publications (1)

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JPWO2004101419A1 true JPWO2004101419A1 (en) 2006-07-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004567187A Pending JPWO2004101419A1 (en) 2003-05-14 2003-05-14 Elevator equipment

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JP (1) JPWO2004101419A1 (en)
WO (1) WO2004101419A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014172691A (en) * 2013-03-07 2014-09-22 Toshiba Elevator Co Ltd Elevator system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1820765A4 (en) * 2004-12-08 2011-12-28 Mitsubishi Electric Corp Rope for elevator and elevator
KR100830777B1 (en) * 2006-08-16 2008-05-20 미쓰비시덴키 가부시키가이샤 Rope for elevat0r and elevator
WO2020100306A1 (en) * 2018-11-16 2020-05-22 三菱電機株式会社 Elevator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001042121A1 (en) * 1999-12-06 2001-06-14 Mitsubishi Denki Kabushiki Kaisha Elevator device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014172691A (en) * 2013-03-07 2014-09-22 Toshiba Elevator Co Ltd Elevator system

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WO2004101419A1 (en) 2004-11-25

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